Aeroplane control



1931- H. UMESAKI AERQPLANE CONTROL 2 Sheet-Shet 1 Filed Jan. 20, 1931 In venior a/Z A Home y Dec. 1, 1931. H. UMESAKI AEROPLANE CONTROL Filed Jan. 20, 1951 2 Sheets-Sheet 2 In venior .fiwlz'zkro [imam/h A llomey Patented Dec; 1, 1931 i C .iincnrrAno UME'sAK 'orc IeAGo,iLLrno1s mam-Aim; CONTROL} Application filed January 20, 1931.1: Serial No'. 509,998. I

I This invention relates to certain new and useful improvements 1n aeroplane .controls,

and the primary object of this invention isto provide a control whichwill. consist of less parts and will be comparatively; more simple than controlsnow. used-onsuch crafts.

The most important ob] 'ect of the invention is to provide a single, stick and means associated therewith and having operatlve con-' nection with the elevator, rudder, and ailerons respectively whereby eachof these parts of the air craft may be controlled with facil-Q ity. g Other objects and advantages of the invention will become apparent during a study of the following description, taken in co'nnec tion with the accompanying drawings where- Figure 1 is a side elevational-view of an aircraft, certain parts being broken away to show the application of the invention therewith.

Figure 2 is a fragmentary tional view of the control. j

en substantially on the'line3-3 of Figure 5.

Figure 4 is a view taken at substantiallyv right angles to Figure 2. 1 V

Figure 5 is a side elevational view of a wheel forming part of the invention.

views taken substantially on the lines 6-6 and 77 respectively of Figure 4.

Referring more in detail to the drawings it'will be seen that I have shown a conventional type of aeroplane, the same being designated generally by the reference chary I 4 l p v ously'by rotating therod '5 on a verticalacter A and including a fuselage frame ter F.

and at said end is equipped with 'a'ba'll 6 fitting Within a suitablepocket providedin a dish out bearing 7-provided-on the frame structure F of the fuselage. The sticliB ex' 1 tends upwardly through a slot 8 provided in the floor F an'dis constrainedfor rocking with a cross bar 11.1f I

fiang'epulley wheel 12 is rotatabl mounted between'the extensions 10, the sha of .the pulley wheel being journalle d in elevational see Figure 3 is a transverse sectional view tak-i Figures 6 and 7 are transverse sectional structure S and a fioorfor'the fuselage designated generally by the reference charac-.-

movement right" and left in Figure 4, that is fore and aft oi the aeroplane betweenla pair of guide-"plates 9 rising from the floor F on opposite sides-ofthe slot 8. =1 Preferably the oppositely disposed plates 9' are wedge shaped incross section as suggested 1 in Figure 2-, the opposedfaces of the; plates converging toward oneanother at the upper portion of the plates. Y

The plates 9 havetheir upper edges curved, and the rod or stick 5 at its upper portion is enlarged,- and bifurcated to pro-,

vide a pair of relatively spaced parallel-extensions 10. "Preferably. each of the extensionsxlO intermediate its end, is ,provided bearings 14 slidablein slots 15 provided-in the extensions 10. Bearings 1d are normally urged upwardly with" respect to the' slots through the 'medium of suitable" spring means 16; V. f i f i Rudder controllcables; 17.17 are trained over the wheel 12, and at one end are anchor:

--ed..to thewheel as. at; 18. I Rudder-control cables are then cast downwardly and are trained over suitable guide pulleys .19 (see Fi'gure 2). and th'e'ends of the cable areisuit- {ably connected to! the rudder control: bar 8 (not shown)" I 4 ,gObviouslyfby. rotating wheel'12 fin the pr per directiontherudder will be swung :to the rightorleft for steering the airship.

Acrossfbar20 for" controllingthe ailerons fis k'eyedinterinediate its ends asat 21 to the lower-portionjofthe rod ,lorfstick 5. -Obaxis, for swinging the cross rod 20, the same which is, suitably connected; by means- 11 1539 1 shown,'.to the ailerons, will manipulate the The improved control device consists of a f. i 7 stick or rod 5 that at its lower end is tapered.

ailerons. as .desiijed.

a a ove the cross rcdj zofthlre is. Siam-pea about the-[rod 5 a twofpartcollar 122 The {complemental parts of: the collar" 22 are inc-4 (not shown) with the elevator of the air craft. At its other end'bar 24 is provided" with anintegral fork 25 the ends of which are pivotally connected withthe collar 22.

through the medium of pivot pins 26. The oppositely disposed pins 26 threadedly en gage the'partsof the collar 22 as shown in 'C0llar 22 is thus mounted on rodfi and it is apparent that rod 5 111ay-be located on a vertical axis relative to the elevator control rod 24. It will be also apparent, that by I swinging the rod 5 to the right or left in susc pti e to c a ges, mod a i a r improvem nts qom ngwi't t s pe of the I appen ed laim a L r Havi g thus descr ed my inv ntion, wh

' air craftequipped with a control device com 'rehende'd by the'presentinvention will be ound especially usefulin "making P 'members. e w

In testimony WhGIGOQfI aflix my s nature.

end thereoef and at said bifurcated end hav ing opposed portions longitudinally slotted, a wheel rotatably supported between said opposed portions insaid furcation and provided I with an axle,and a .b'earing slidably accomrmodated in eachof said slots and receiving one end of said'axle, and y eldable means nor- -mally-urgingsaldbearingsin'onedirection.

4. Ina control device ofthe character described, thefcombination of a" control stick provided atone eiid with a ball, a fixed socket receiving said ball; a pair of opposed guide members located in a planeabove the plane of said socket and'reoeiving'therebetween said control stickfor limiting movement of the.

stick about a transverse axis to two directions, each of said opposed guide members having a convex upper'edge, theo'p posed iac'es'of said guide members being-inclined atanincline to the perpendicular to converge towardone another at. the. upper "edges of said guide Y, H I AB WE AKI- studentf flights, and also "for experienced pilots when making long ltrips, since obviousv I ly the control may be readily manipulated by the hands of the pilot thus'obviatin'g the need of bringing. the 'feet into useias is required with control devices as used in present day air craft; v 351i E en ho gh I, ha e he n sh and vention, it is to be understood that the same I clai asrnew s:

I l, a een r'ol device f the-chara destribe th e pre r e b d t f vnse bed, th combina i of a ont ist k i' capable of movement in two directions and .he ingapa r of opposed l t ed po t s v pt'entr l" eel retata lyup p rt l between 7 said sl tted port on an a s id ng be r ng i the. lo of each o sa d por ionsland r t 7 "ing one n of the axl said eetr l Whe l- 2- In a ontro de ice f e Chara ter described, the mbination Of a o ro stick c 'a- V p'ab e of m vement in two'directien an vingai air ofoppQs d sl ted Port W91 i 1 1v W, ee retata ly support d, b tween sai it V slotted'portions, anda slidinghearingfinthe time each 9f, a pe t bn' 'ans meet ho end efi-tbe antle Said con ro hee 7 I .deser bed; th eombi iat onof a tentrots 1 capa le i movem nt in tw r more direcbearmgag'ainstsaid w a nmlly urging th latter i a. glV ITdireQti n.

endyieldahle d vic rrang a d slot i g beariegs'iernorn a, centrolling' evice of t ey ha acte tioiis, said stick being bifurcated adjacentone 

